4-23 fast and ls ttl data quad 2-input nand buffer 13 14 12 11 10 9 8 2 1 3 4 5 6 7 gnd v cc a b y a b y a b y a b y guaranteed operating ranges symbol parameter min typ max unit v cc supply voltage 74 4.5 5.0 5.5 v t a operating ambient temperature range 74 0 25 70 c i oh output current e high 74 15 ma i ol output current e low 74 64 ma mc74fxxj ceramic mc74fxxn plastic mc74fxxd soic d suffix soic case 751a-02 n suffix plastic case 646-06 j suffix ceramic case 632-08 14 1 14 1 ordering information 14 1 quad 2-input nand buffer fast ? schottky ttl mc74f37
4-24 fast and ls ttl data mc74f37 dc characteristics over operating temperature range (unless otherwise specified) limits symbol parameter min typ max unit test conditions v ih input high voltage 2.0 v guaranteed input high voltage v il input low voltage 0.8 v guaranteed input low voltage v ik input clamp diode voltage 1.2 v v cc = min, i in = 18 ma v oh output high voltage 74 2.0 v i oh = 15 ma v cc = 4.50 v v oh output high voltage 74 2.4 v i oh = 1.0 ma v cc = 4.50 v 74 2.7 v i oh = 1.0 ma v cc = 4.75 v v ol output low voltage 0.55 v i ol = 64 ma v cc = min i ih input high current 20 m a v cc = max, v in = 2.7 v 0.1 ma v cc = max, v in = 7.0 v i il input low current 1.2 ma v cc = max, v in = 0.5 v i os output short circuit current (note 2) 100 225 ma v cc = max, v out = 0 v i cc power supply current total, output high 6 ma v cc = max, v in = gnd total, output low 33 ma v cc = max, v in = open notes: 1. for conditions shown as min or max, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. not more than one output should be shorted at a time, nor for more than 1 second. ac characteristics 74f 74f t a = +25 c t a = 0 c to 70 c v cc = +5.0 v v cc = 5.0 v 10% c l = 50 pf c l = 50 pf symbol parameter min max min max unit t plh propagation delay 1.5 5.5 1.5 6.5 ns t phl propagation delay 1.0 4.5 1.0 5.0 ns function table inputs output a b y l l h h l h l h h h h l h = high voltage level l = low voltage level x = don't care
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